Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint and preparation method thereof

An anti-corrosion coating, two-component technology, applied in anti-corrosion coatings, conductive coatings, epoxy resin coatings, etc., can solve the problems of carbon black in the paint film, restrictions on popularization and application, and environmental pollution

Active Publication Date: 2014-04-30
GUANGZHOU JOINTAS CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon-based conductive fillers have good electrical conductivity, but carbon black is easily absorbed and stored in the paint film as the solvent volatilizes
There is a potential difference between carbon black and steel, which is easy to cause galvanic corrosion on the steel plate, and the carbon filler will seep into the oil and affect the quality of the oil
Therefore, carbon-based electrostatic conductive coatings have problems such as poor adhesion and oil resist

Method used

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  • Waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A water-based two-component light-colored anti-static anti-corrosion coating in a tank. Its components and mass percentages are as follows: 13.2% of tap water, 41% of water-based epoxy emulsion, 11% of water-based epoxy curing agent, 16.8% of light-colored conductive filler, 8% composite iron-titanium powder, 4% rutile titanium dioxide, 3% talc powder, 0.2% anti-settling agent, 0.2% wetting and dispersing agent A, 0.3% wetting and dispersing agent B, 1% film-forming aid, Anti-flash rust agent 0.1%, thickener 0.5%, defoamer A 0.2%, defoamer B 0.2%, leveling agent 0.3%. Its preparation method is as follows:

[0032] 1) Under the stirring condition of 400r / min, add 7.5% tap water, 0.2% wetting and dispersing agent A, 0.3% wetting Dispersant B, 0.5% film-forming aid, 0.2% defoamer A, stirred for 5 minutes; under stirring at 600r / min, add 0.2% anti-settling agent, 8% composite iron-titanium powder, 4% rutile titanium dioxide, 3% talc powder, then disperse at high speed for...

Embodiment 2

[0037] A water-based two-component light-colored anti-static anti-corrosion coating in a tank, its components and mass percentages are as follows: 20% of tap water, 30% of water-based epoxy emulsion, 7% of water-based epoxy curing agent, 18% of light-colored conductive filler, Composite iron-titanium powder 12.4%, rutile titanium dioxide 1%, barite powder 7%, anti-sedimentation agent 0.2%, wetting and dispersing agent A0.3%, wetting and dispersing agent B0.2%, film-forming aid 1.5% , Anti-flash rust agent 0.4%, thickener 1.2%, defoamer A0.3%, defoamer B0.3%, leveling agent 0.2%. Its preparation method is as follows:

[0038] 1) Under the stirring condition of 100r / min, add 10.3% tap water, 0.3% wetting and dispersing agent A, 0.2% wetting Dispersant B, 0.3% defoamer A, 0.75% film-forming aid, stirred for 5 minutes; under stirring at 800r / min, add 0.2% anti-settling agent, 12.4% anti-rust pigment, 1% titanium dioxide, 7% weight Spar powder, then disperse at high speed for 30 ...

Embodiment 3

[0043] A water-based two-component light-colored anti-static anti-corrosion paint in a tank, its components and mass percentages are as follows: 17% of tap water, 38% of water-based epoxy emulsion, 10% of water-based epoxy curing agent, 9% of light-colored conductive filler, 15% flaky mica powder, 1.5% rutile titanium dioxide, 6% barite powder, 0.1% anti-sedimentation agent, 0.3% wetting and dispersing agent A, 0.2% wetting and dispersing agent B, 1% film-forming aid , Anti-flash rust agent 0.6%, thickener 1%, defoamer A0.1%, defoamer B0.1%, leveling agent 0.1%. Its preparation method is as follows:

[0044] 1) Under the stirring condition of 300r / min, add 10.3% tap water, 0.3% wetting and dispersing agent A, 0.2% wetting Dispersant B, 0.1% defoamer A, 0.5% film-forming aid, stirred for 5 minutes; under stirring at 700r / min, add 0.1% anti-settling agent, 15% anti-rust pigment, 1.5% titanium dioxide, 6% weight Spar powder, then disperse at a high speed for 30 minutes at a spe...

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Abstract

The invention discloses a waterborne two-component light-color in-tank electrostatic conduction anticorrosive paint, which is prepared from the following components by weight percent: 8-20% of running water, 30-45% of waterborne epoxy emulsion, 7-15% of waterborne epoxy curing agent, 8-20% of anti-rust pigment, 1-7% of white pigment, 1-7% of white filler, 8-18% of light color conductive filler, 0.1-0.3% of anti-settling agent, 0.1-0.4% of wetting dispersant A, 0.1-0.3% of wetting dispersant B, 0.8-2% of coalescing agents, 0.2-0.6% of defoamer, 0.1-0.3% of flatting agent, 0.1-0.6% of antirust agent, and 0.5-2% of thickener. The two-component waterborne epoxy resin and waterborne curing agent are taken as main film-forming matters, so that the condition that the coating has high crosslinking density and barrier property is ensured by chemical crosslinking reaction of two components.

Description

technical field [0001] The invention relates to a water-based two-component light-colored anti-static anti-corrosion coating in a tank and a preparation method thereof, belonging to the technical field of anti-static anti-corrosion coatings. Background technique [0002] In order to ensure the safe use of the oil storage tank, while considering the anti-corrosion protection inside the oil tank, it is also necessary to suppress the generation of static charge and promote the leakage of charge, and eliminate the accumulation of static charge. Therefore, the inner wall of the oil tank should use anti-static anti-corrosion paint. According to the national standard GB50393-2008 "Technical Specifications for Anti-corrosion Engineering of Steel Petroleum Storage Tanks", the surface resistivity of the anti-static anti-corrosion coating in the tank should be at 10 8 ~10 11 in the range of Ω. The solvent-based electrostatic conductive coatings mainly based on carbon series have been...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D7/12C09D5/08C09D5/24
Inventor 陈中华余飞
Owner GUANGZHOU JOINTAS CHEM
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